AIR BRAKES CDL PRACTICE TEST - MISSISSIPPI
16.
Why should you check your mirrors regularly to know where other vehicles are around you?
|
To flash the brake lights if you are being tailgated.
|
|
|
To know whether you can make a quick lane change in an emergency.
|
|
|
To better assess your own speed.
|
|
|
To move out of their way if they want to get past.
|
17.
If you must drive slowly, how should you alert following drivers?
|
Help them out by signaling when it is safe to pass
|
|
|
Flash your brake lights
|
|
|
Use your emergency flashers if it is legal
|
|
|
Turn on your taillights
|
18.
With brake drums, if brakes become too hot:
|
your ABS will malfunction.
|
|
|
the air compressor will kick on to cool the brakes.
|
|
|
the brakes will supply too much power to the drive wheels.
|
|
|
the brakes may stop working.
|
19.
With the air pressure built up to governor cutoff, the maximum leakage rates per minute are ___ psi for single vehicles and ___ psi for a combination of 2 vehicles.
|
3; 4
|
|
|
5; 6
|
|
|
3; 2
|
|
|
4; 5
|
20.
The application pressure gauge shows:
|
how much pressure the relay valves should send to the trailer brakes.
|
|
|
how much air pressure you are applying to the brakes.
|
|
|
how much pressure is in the air tanks.
|
|
|
All of the above.
|
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More